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Ksivusya [100]
3 years ago
13

True or false in a chemical reaction some of the atoms will be changed into different type of atoms​

Chemistry
1 answer:
Anika [276]3 years ago
7 0

Answer:

It's false

Explanation:

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If we take 2.2 grams of CO2, 6.02 X 1021 atoms of nitrogen and 0.03 gram atoms of sulphur , then the molar ratio of C, N, and O
Zanzabum

Answer: -

5 : 1 : 3

Explanation: -

Mass of CO₂ = 2.2 g

Molar mass of CO₂ = 44 g / mol

Number of moles of CO₂ = \frac{Mass}{Molar mass}

                                          = \frac{2.2}{44}

                                         = 0.05 mol

Number of atoms of nitrogen = 6.02 x 10²¹

Number of moles of nitrogen = \frac{Number of atoms of nitrogen}{Avogadro's number}

                                                 = \frac{6.02x1021}{6.02x1023}

                                                = 0.01 mol

0.03 gram atom of sulphur means 0.03 moles of sulphur.

Thus the mole ratio of CO₂ : N : S = 0.05 : 0.01 : 0.03

                                                         = 5 : 1 : 3

7 0
4 years ago
Read 2 more answers
What is the equilibrium expression for the reaction below?<br> 2Na(s) + 02) Na2O2,(s)
iogann1982 [59]

Answer:

{ \tt{k _{c} = \frac{[Na_{2} O _{2} ]}{[Na] {}^{2} [O _{2} ]}  }}

3 0
3 years ago
A photon has an energy of 1.10 x 10 -13 j. What is the photon's wavelength? What type of electromagnetic radiation is it?
lawyer [7]

Answer:

λ  = 0.002 nm

The given photon is either x-ray or gamma ray because the range of x-ray and gamma ray is 1 nm-0.1 pm.

Explanation:

Given data:

Energy of photon = 1.10 × 10⁻¹³ J.

Wavelength of photon = ?

Solution:

Formula:

E = h.c / λ

λ  = h. c / E

λ  = 6.626 × 10⁻³⁴ j. s × 3×10⁸ m/s / 1.10 × 10⁻¹³ J.

λ  = 19.878 × 10⁻²⁶m /  1.10 × 10⁻¹³ J

λ  = 18.071 × 10⁻¹³ m

λ  = 18.071 × 10⁻¹³  × 10⁹

λ  = 18.071 × 10⁻⁴ nm

λ  = 0.002 nm

The given photon is either x-ray or gamma ray because the range of x-ray and gamma ray is 1 nm-0.1 pm.

3 0
4 years ago
CaCo3+2HCL Cacl2+h2o+co2
Rasek [7]

Answer:

Here

Explanation:

This is an acid-base reaction (neutralization): CaCO3 is a base, HCl is an acid.

6 0
3 years ago
How many Calcium (CA) atoms are in carbon tetrachloride​
forsale [732]

Answer:

5

Explanation:

Carbon tetrachloride has molecular formula as  CCl4 , so from this it is evident that there are 4 atoms of Chlorine & 1 atom of carbon is present, in total 5 molecules are present in carbon tetra

5 0
3 years ago
Read 2 more answers
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